Kernel
Available for: Apple TV 4K and Apple TV (4th generation)
Impact: A local user may be able to read kernel memory
Description: An out-of-bounds read issue existed that led to the
disclosure of kernel memory. This was addressed with improved input
validation.
CVE-2018-4282: Proteas of Qihoo 360 Nirvan Team

WebKit
Available for: Apple TV 4K and Apple TV (4th generation)
Impact: A malicious website may be able to cause a denial of service
Description: A race condition was addressed with additional
validation.
CVE-2018-4266: found by OSS-Fuzz